HM-462: Set SDP Queue Connector FQDN on Dish Leaf node

1. What this MR does / why we need it:

• This MR contains changes to set SDP Queue connector FQDN on dish leaf node in receive address change event callback

2. Make sure that you've checked the boxes below before you submit MR:

• No conflict with master branch.
• Merge Request Title appropriate.
• Unit/Integration tests added and existing test cases are passing.
• Variable and Function names state the purpose.
• There is no commented out code, print/debug statements.
• Logs are added wherever necessary.
• Exception is handled wherever required.